CBM8032 - wobbly screen

Hi again folks, My US 8032 turned up today (yay!). Since I can't modify the transformer (unfortunately - it looks like the US one doesn't have dual primary taps like the UK one), I've swapped it out with the 240vac transformer from my other (still broken) 8032. This machine has a wobbly screen, just like the 8032-SK (which was broken, but I installed the working motherboard), the other 8032 (which was working, until I swapped the broken m/b), and the 3016. In fact, the only PET I've got which *doesn't* have a wobbly screen is the 2001. Well, it does wobble, but only a tiny bit. ISTR a discussion (mostly with Tony) about dried electrolytics maybe causing the problem. However, I spoke to the chap in the US who said that when the 8032 left America it had a rock-steady screen... Since I left the big cap in place, it can only be the transformer which is causing the wobble - can't it? I genuinely don't know. That's the only part I've swapped in the new 8032. Could a flakey transformer be making the screen wobble? How do transformers go flakey anyway, if indeed they *can* co flakey? Or is the US chap telling porkies? Thanks, again, in advance. -- Cheers, Ade. Be where it's at, B-Racing! http://b-racing.co.uk