Okay. I'll wait on UP5.
Let me see if I understand you correctly here. Once I have UP5 and upgrade to mate 1.4 via the mate repo it will work but I can expect some problems down the road if I remain on the default mint 'latest' repos.
"Eventually" mint will update from 1.2 to 1.4 in its repos but eventually can be a long, long while.
Is this the case?
MSI 880GME35-455 MB, Athlon AM3-A2-455R 3x CPU, 4GB DDR3 RAM, WD 320 GB SATA3 HD
Single FDE container holding LM13 MATE, LMDE2 MATE, LM17.1 MATE, swap and shared data lv's.