Eclipse Version 3.5.2 Build id: M20100211-1343 Platform: Ubuntu 10.4

I go to install any new software Eclipse plugins (e.g., pydev, subclipse), and it gets to the 60% mark and stops. I wait for a long while and nothing happens. When I hit "cancel" a security warning comes up "Warning: You are installing software that contains unsigned content.." I click "OK" but it's too late because I've cancelled the installation already. It won't pop up until I hit "cancel".

I've tried moving all the windows around, that security warning is not there. In previous incarnations of Eclipse, I've been able to click "OK" on that warning (no canceling) and all is well.

I've also tried two JREs (Ubuntu's default openjdk and Sun's JDK 1.6.0_20).

Is there some way to get that warning to come up, or even just have it always accept unsigned content?

I've downloaded the zip of pydev and unzipped it into ~/.eclipse/org.eclipse.platform_3.5.0_155965261/ and Eclipse doesn't have Pydev when restarted, so manually installing plugins is also a pain.

This is not my day.

Yes, I see the other questions of this type and they don't seem to answer my problem.