There have been some reports that this crashes (random white screens) on supercard when patching with 2.52. I patched it with 2.51 and it seems to work fine but I haven't played it that much.
Just interested to here how others make out and if anyone does get crashes on 2.52 if you still get them on 2.51. It was reported to crash after creating the profile and doing the sudoku tutorial - both of which worked fine for me with 2.51.
Try 2.51, it worked well so far for me. I also tried 2.52 and it got me a white screen during the daily training... but with 2.51 i got through the first daily training session.
...the game stayed white during the transition to the a->1->b->2 game in brain age test thingy.. the first option after the intro =P i patched with 2.51 SCSD