The bottom tool bar which shows the date and time along with what other programs are open etc. every now and again suddenly goes blank. If I hover over where the icon used to be a faint shadow is visible but nothing else. If I right mouse the shadow a darker box opens above it but without any text in it. If I restart the computer and open up programs again the bottom toolbar is fine again Any ideas please

What distribution / version are you running?

CINNAMON

I am unfamiliar with mint and cinnamon but it appears to be a video driver problem. with no clear solution.

forums.linuxmint.com/viewtopic.php?f=90&t=104617
forum.linuxmint.com/viewtopic.php?f=208&t=104514

Cheers will look at this