problems with disinstalling REV

[barryb at libero.it]

I know this is  really a problem for the QAC and I tried it but was asked for a 
password that I do not know anything about. So I thought somebody could help me 
here.

I have several versions of REV installed on WindowsXP, infact all from 
2.7.2 to 4.0dp4. I stupidly opened a stack made with 4.0 in the previous two 
versions (3.0 and 3.5), now both of these have the Dictionary corrupted. The 
two sliding panes are blank and the side menu is totally inactive. I imagine 
that this could be corrected with a complete disinstal and reinstallation, 
however, problems arose in attempting to do this.
In the Windows Control 
Panel\application installation\Revolution Studio\ - on clicking change/remove 
programs, the red Revolution Installer comes up which says it will remove 
specific versions of Revolution in the folder C:/Programmi/Revolution Studio --
"Please click Next to continue..." 
Wait for it....there is NO 'Next' button 
only a 'Quit'! This, of course, I will notify to QAC but has anybody an idea of 
how I can proceed in the meantime? Version 4.0 is still going fine including 
the Dictionary.
Regards Barry