Can't load my previous saves in 13w38 : EXCEPTION_ACCESS_VIOLATION

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x00000000698a0760, pid=2832, tid=7008
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JRE version: 7.0_10-b18

Java VM: Java HotSpot(TM) 64-Bit Server VM (23.6-b04 mixed mode windows-amd64 compressed oops)

Problematic frame:

C [atio6axx.dll+0x8e0760] DrvPresentBuffers+0x8a17c0
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Failed to write core dump. Minidumps are not enabled by default on client versions of Windows