Not only on Maxidas its also on MS908P I am having same problems have also emailed Autel but, looks like no one is able to fix this issue here look this post.......
http://pro.autel.com:6688/autelsupport/Diagnostic%20System/27129.jhtml?logoTypeId=94&typeName=MaxiSys
I did every thing that I have think of I did also Formatted the SD Card of MS908P and re-Installed all software but, it will not install in SD Card.....