Yes, your suggestion re drive letters was the direction I was going in also. In fact, and unless I am missing something, it's obvious what the problem is. I installed the portable application on a USB stick on my work pc – which allocated D: drive. When I have then connected the USB to a different pc at home the drive letter is not the same - for example on one of my home pc's it's on drive J:
Therefore as soon as the portable app is launched on a different machine it cannot find the relevant folders on the drive D: and, I assume, thinks they have been deleted and promptly moves them to the trash folder. I’m guessing here, but it would appear the portable app is dependent on the space folder directory location which in my case is drive D:
How can we resolve this, if this is the actual problem?
I have seen similar portable programs that detect installation on a portable drive and ignore the drive letter - Teamdrive portable appears not to do this, as far as I can ascertain. I'm not sure that it's possible to manually 'change' the drive letter associated with the space prior to opening the portable application as it has to be running before you could attempt to change it.
Your thoughts on this problem would be much appreciated!
Many thanks, Barry