Stroke disappearing

[jbdean@adobeforums.com]

I'm using Illustrator 9.0 on a PC with XP Professional.

When I first open a new document and draw a circle with the oval tool, I get a stroke. But once I change the color of that stroke it vanishes and I can't get any further strokes to show up except with the brush tool. It happens when I use a color of my own picking (which is what I'm trying to do) or when I use one that is in the default color pallet.

I've verified that the stroke is a number and that the opacity is at 100% but still the stroke vanishes once I change the color. Fill works fine no matter what.

I've never had this problem before and I use Illust. on both PC and Mac (at home). I tried rebooting the program and the exact same thing happens each time. Same when I reboot the whole computer.

Anyone know what I'm doing wrong?

Thanks, in advance, for any help.

[Jacob_Bugge@adobeforums.com]

jbdean, have you tried the Great Invokation (deleting the AIPrefs file, FAQ item 4)? It solves many strange things.

If you have special settings, you have to reset these after a deletion; if you have you may save the file under another name so you can rename the old file if the invocation proves ineffective.