Thanks Tig,
Well not sure what I have done but I have profile builder 2 (PB2) working again with Skup operating as normal.
What did I do... well not sure really, however when I reinstalled Skup on Windows 8.1 some weeks ago now, I think I must has install PB2 from a different Extension Warehouse account and then I transferred my assemblies across to the library folded within PB2. I thought I was working with the paid version but was not and yes it did screw things up within Skup when PB2 expired.
I found a old email from the extension warehouse advising not to store assembles within the aforementioned folder which I was.( not sure if that relevant to my issue)
I deleted the .rb and BP2 folder, ( well moved it out of the way somewhere else) logged onto the other warehouse account, the one I purchased it from and installed it and all looks to be ok ( I had to reset all tool bars for this process). I have moved my assembles else where as instructed. so I think everything is working again.
It was strange how it screwed up Skup though.
Thanks again Dr Tig.