Dodgy rewinding.

Hi folks,

I will shortly be receiving an Espio 120, that I won on eBay for just £2.99 + £2 p+p.
The camera looks to be in very nice condition and will compliment my superb 280-P.
The seller reported a tendancy for the film to rewind mid-roll and I was wondering if anyone could shed some light on the probable cause and repair options.

Also, - and I know this is a bit geeky, but my 280 does not have an original strap and I'd love to get hold of one.
Anyone point me in the right direction :

Cheers
Kimbo.

edit: found the strap ( £8.29 ) but it no longer appears to be available