When I save in the middle of a series of levels that include about 40 HUGE levels... and when I try to continue from the save... It says "Memory alloc. error (some numbers) and then won't load the save file...

Have people put something like a... 'Can't save' thingamajig on, so you must finish all levels in a row... that'd be highly unnecessary!
Or is it somekinda mistake...?

Help needed...