Window borders disappear

I have a new install of Ubuntu 11.04 and sometimes the window borders will disappear. How do I prevent this or at least get them back without logging out and logging back in (which means close all my programs)?

I have installed WINE but it is not running, but seems to make it happen more often I think when it is running, probably just cause of the exe I am running.

I probably have an out of date Ubuntu because I have no internet and I think Ubuntu comes out of date when you get the ISO, but if there was a patch I needed, I can install it.

From a command line, run :

compiz-decorator --replace

I had something similar where compiz and metacity where not working well together.

try compiz --replace &

I had to stop doing it after updating though.

ubuntu 11.04 used new kernel and has some bugs. Border problem is one of them. If your computer is old one or low graphics configure then i prefer to use 10.04. 10.04 is the most stable version of ubuntu i ever see. To get back border follow amosrivera's suggestion.