I've seen the previous posts about this anomaly but I was hoping it wouldn't happen. I left my 986 parked overnight outside in the Las Vegas Winter and woke up to the following morning to this on my instrument cluster. 
My only question is do I try to wait until the summertime weather for it to fix itself or is the LCD display bad for good or is the cable ribbon only bad. 
I found the cable ribbon available for sale but not sure that will fix it permanently. 
Don't know if I should just bite the bullet and get the display repaired or look for a used cluster on eBay and then pay to get the mileage adjusted accordingly. 
