It began 2 or 3 days ago. My windows keep diseppearing. They minimize for a second or two, then come back. And sometimes they won't, so i have to click them on the task bar. It happens 2-3 times every hour. First it was only mozilla, then evolution, and then Opera. Another strange problem is on kdm login screen. The password field suddenly stopped showing anytihng when i type my password. I can't remember fine but i guess it was showing some stars or sth. This happened the last two times. I'd like to send you some more details, but i don't know what to send. I'm a 8.1 user, (8.2 hoper; hope to see 8.2 box someday in Istanbul; and even, buy it) & KDE 3.0.3. I changed nothing but some preferences; like colors, windows decoration, menu transperency, background color and screen saver, in the last 2-3 days. Any help? Thanks.