constantly hangs purse transaction writes too much and does not send more than 2000
win 8.1 [x64]
Have you downloaded the version above with coin control?
You will need to send coins from this wallet TO this wallet again, so it can combine all the small transactions.
I suggest sending 50 MUE at a time for a few dozen times, then try 100 MUE, then 500 MUE, then 1000, then 2000, 5000 etc
See how you get on.
This is a known issue with older QT wallets and is why we are addressing it with these new revisions to the wallet software.