Maybe. But it's a temporary mitigation. If you have stuff fragmenting MemToLeave, increasing the size will delay the problems, not prevent them.
Also, that means that, without AWE or 3GB, you now have 1.3 GB for SQL's buffer pool and other caches, not 1.7.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability