I remember when I first put an '030/50 in my A1200 desktop. It started crashing due to overheat. Anyway, I decided to leave off the trapdoor and raise the case an inch or so off the table. So I put four nicely trimmed broccoli spears at each corner and it worked just great. Had to change 'em for fresh ones every week or so, else the case drooped back too much and it would crash again. Carrots work too, but they tend to skid when you type things. The multi-point contact provided by broccoli is perfect for lateral stability and I've never found anything to match it since. Needless to say, I have converted my once lush lawns into broccoli growing areas so I'm never without it. You can get my special non-yellowing broccoli spears on eBay under 'everything else'. Happy bidding!
JaX