Time Machine and newly "fixed" computer

[Herins]

Hello,
I got my computer back from Apple about a week ago, and just realized that Time Machine hasn't been backing up since. Now the external drive is full - whereas it used to just replace it's own info (right?). Should I erase all the files that show up on the external in the finder window and do a new back-up?
Thank you!

 

[Herins]

Okay, the strange thing is that Time Machine thinks my external drive is full, but when I "get info" on the files on the external, they don't even take up half the space. What is going on???

 

[BlueRevolution]

Try just turning Time Machine off and back on again.

 

[Theirishjoey]

Try just turning Time Machine off and back on again.

"Have you tried turning it off and on again?" The most famous line in all IT troubleshooting history .

Make me laugh every time.