Frequent access violations on Windows10

I've used Heidi for my database class for the last two years, but recently my students and I have seen an inordinate amount of errors like htis:

operating system : Windows 10 x64 build 15063 processors : 8x Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz physical memory : 4306/8118 MB (free/total) display mode : 1920x1080, 32 bit allocated memory : 44.54 MB largest free block : 1.06 GB executable : heidisql.exe exec. date/time : 2016-10-21 12:41 version : 9.4.0.5125 compiled with : Delphi XE5 madExcept version : 4.0.12 callstack crc : $c6812129, $80fbcb30, $80fbcb30 exception number : 6 exception class : EAccessViolation exception message : Access violation at address 00521B2C in module 'heidisql.exe'. Write of address 00000000.

Most of the time hitting the "continue application" button works. Occasionally the program closes and we lose a bit of work.

Any ideas?

-- Cliff

Fishing in dark - my firefox dies in same way - no warning, just disapears - pretty much sure reason is - out of pyhsical memory.