Changing template causes irrecoverable error

[Aspiretech]

I'm facing an irrecoverable error whenever I change the control panel template using the drop down menu.
Once the change is applied, I am unable to switch anything back to default. The image below shows what the dashboard looks like. So far the only option I have when this problem occures is to completely uninstall and reinstall the application which (quick vent of frustration: is really f@#*ing annoying and bizarre).

Is there something I am missing? I've been searching this help section for a bit trying to find a similar topic and I do apologize if this has already been discussed.
I appreciate any input.



OS: Windows XP
Sugar Version/Edition: v.5.5.0 Community Edition
Server: Debian (Linux)
PHP version: 5.2.2
MySQL server version: 5.0.45
Error tested and replicated in IE8 and Firefox 3.6

[andopes]

It seems the folders cache, themes and custom are not writable.
Figure that out and try again.

Regards

[ekwade]

I have had the same problem. Setting permissions on [Cache] , [custom] , and [themes] recursively to 755 solved it. Problem is, anytime we change themes to another one, it reverts back and we have to reset all to 755 again.