For some reason whenever I run the class browser I get the following error.

Invalid path or filename
Browser:    Classbrowser
Object:     Classbrowser
Error:      202
Method      Scaleresize

I get a similar error when I try to run the component gallery

except the method reported is 

Method:    Switchbrowser

The paths in options that point to the class browser and component gallery seem to be intact and the files themselves exist.

Anyone seen this before?

I dont want to do a re-install unless I have to.

Many Thanks