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porrid · 11:05 PM

After logging out of gmail last night I clicked on another Pinned Tab, suddenly my display turned black and remained so for 4-5 seconds before returning to normal.

It didn't affect iTunes, music kept playing

What may have this been?

P · Jan 23, 2014, 08:18 AM

A GPU crash, probably. Do you have one those Macs with problematic GPUs that have popped up recently? I think it was the 2011 iMacs with Radeon graphics. If not, could have been caused by temperatures if the cooling isn't working 100%.

porrid · Jan 23, 2014, 10:55 PM

I purchased my iMac early 2008 and have had much more than a fair share of issues with it, but has for 18 months been working well.

I think perhaps the issue is more to do with the Chromium browser, in that now when I click to close a tab each window goes completely transparent for 3 seconds before it closes. Maybe the creators of it will post an update soon.