I've installed TT's version and all was okay until I re-booted and then the mouse pointer (usually in top left corner) disappeared. Tried fixes from Apple but none worked until I un-installed TT Safe.
Any one else had this problem?
A quick search in the Community didn't point to a previous report of this. May be it was a one time issue in your device. You can try to reinstall TT Safe and if it reoccurs, I would recommend to check with TalkTalk to troubleshoot this further.