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Glad to hear that this is a software compatibility issue, not hardware. My hardware suggestions was based on understanding that the key-shifting had started to appear on a system that previously was OK, but didn't work properly after a period of disuse. Now I understand that you had not used...

If this effect is only on the first few keys of that bottom row, then it is probably due to one of the traces in the keyboard membrane shorting or not connecting. First I would take the keyboard apart and thoroughly (but gently) clean everything around the membrane, and particularly where the...

Looks good - PM? Rick

If you want complete control of the load order, not just first and last, print out a copy of the ASCII code chart to see exactly the order in which printable characters will be sorted by "alphanumeric" sorting, then apply prefix letters to extension names accordingly. Rick

Was there ever an equivalent of the OSX Mac Hardware Test suite for Compacts? I could really do with some diagnostics. Maybe a library of scripts to exercise things interactively, separate from POST tests in the ROM? Apple techs must have had something to work with other than just poking...

If that swooshing noise could also be described as a kind of chuffing noise, and if it is not the normal disk-spinning sound but comes from the analog board (put your ear to the left-hand side of the cabinet to locate it), then that noise will probably be the over-voltage protectors working...

From recent experience, my bet would be the Bourns filter. The external floppy port has power pins on it, and if those get fed back onto a signal pin they will blow one or more channels in the filter. It can happen from a fault in the drive, but also wrong cable pinouts - say the drive was...

A thing of beauty indeed - I've seen a couple still in use as catalog displays in art galleries. Keep the faith! Rick

Teach me - what is the best choice of emoticon to make sure nobody on this forum is in doubt that I am joking? I thought the "evil" emoticon would be enough, but apparently it is possible that I might be sincerely evil. :O Of course, this being the internet, I could also be a dog. Unless...

@CC: Hey, do some forensic investigation on that hard disk and send a ransom note to the dealership, using letters cut out from their local newspaper. They're sure to be hiding something }:) Rick

There's a good chance that the problem is not in the keyboard or the cable, but in failing/failed capacitors on the logic board or analog board of your Plus. Replacing caps solved this problem for me. See lots of threads here about caps replacement, model by model. Rick

Corrections to above post! [Too late to edit] I misremembered - the link was posted in a different forum. I found it. The utility was Photonix II, a ProDos program that, when I looked again, seems to have been just a fancy disk copy and format utility.. None the less, any comments on...

In a thread here I can no longer find, somebody posted a link to a video of a conference presentation on 400/800k drive maintenance. The presenter had up on screen a neat full-screen GUI utility that showed the status of many parameters on the target floppy drive, and disk under test. It...

Yes, I've confirmed the IWM works fine and system will boot from a Superdrive (Sony MFD-75W) on the internal connector (with pin 9 of the cable disconnected - I put in a DIP switch for testing ). I've replaced the Bourns filter with a new one. So how do I follow up on "voltage sag" and why...

@Byrd Great image :lol: Vintage computing meets lion-taming ;) Rick

The classic recommendation on bringing up a long-dormant vintage item is to first "condition" the old caps by bringing the thing up on a slowly increased AC voltage - but this assumes you have access to a variable AC supply, which most of us do not. The thing is, if caps are near end of life...

I've just been through the Bourns filter problem on my 512Ke. Fortunately, it is easy to test the filters without removing. With power off, just put a multimeter across each of the inner 8 pairs of pins, in the 200k resistance range. If it fluctuates up and down (filling the cap) then settles...

@Marky: That's where the hardware will limit you, whatever OS you try. Without multi-threading, the poor little thing will always struggle to handle heavy decoding plus video driving, especially if you are downloading at the same time. Rick

@Uniserver I can relate to that.. Your son shows promise as a future 68kmla experimentalist. That is, until he learns RTFM. I'm quite a lot older but still learning RTFM. ;) Rick

A real expert advised me there is no point in degaussing FDD heads, because they make binary signals rather than the analog signals of audio tape heads. That surprised me because the recording mode is FM, but it must be pulsed FM rather than FM over an AM carrier (which is radio FM). Rick