Many thanks. That sorts it.

I hadn't realised that even though I log on as an administrator I didn't have 'write' permissions to a folder I had created. Windows7 confusing me! Though am easily confused!

Cheers
Dan

I will check that now

Thanks for coming back to me:

I'm saving to a project folder on my primary local hard drive (C) here:
C:..... Interiors.... Bathrooms

@dave r said:

It sounds like a Windows 7 folder permissions problem to me. What is the save location for your SKP files?

I'm a long time though intermittent user of SketchUp and now on Pro 8 on Windows7.

I've been having problems saving models that I have edited. The SKP file does not seem to be updating and I have to resort to opening the SKB file and then Save As as SKP file. Just to make it tricky the SKB files are named 0.SKB 1.SKB 2.SKB (ie do not have the same name as model) Very frustrating/confusing.

I vaguely recall seeing a similar problem reported on the SketchUp Forum but can't find it now and anyway I've always found the feedback on this Forum to be much more relevant/informed.

Thanks in advance

Dan

UPDATE just found the similar problem reported on SketchUp Forum with no solution.

http://productforums.google.com/forum/#!searchin/sketchup/skb/sketchup/hzV3Q6N16bI/_xLP7sb4GeEJ