Recurring Application error

[Susan Lammi]

When opening a specific workbook I get....

Access violation (0xc0000005), Address:0x3009749f

and excel closes down...

The strange thing is that the file works for a while and then something goes
bad.....then I restore a backup and it works for a while again.,.....

Is there a way to tell something more specific from this error message. I
looked at Dr. Watson but can't make any sense out of the results... some of
which are below.....

Application exception occurred:
App: excel.dbg (pid=132)
When: 9/24/2003 @ 11:10:40.96
Exception number: c0000005 (access violation)
.....
State Dump for Thread Id 0x3c

eax=00000000 ebx=00000000 ecx=0000000c edx=00000000 esi=01e0ed24
edi=01e0ed62
eip=3009749f esp=00128820 ebp=001290e0 iopl=0 nv up ei pl zr na po
nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000
efl=00000246


function: Ordinal44
3009747a 0f84b7290f00 je Ordinal44+0x189e37 (30189e37)
30097480 48 dec eax
30097481 0f84a6290f00 je Ordinal44+0x189e2d (30189e2d)
30097487 48 dec eax
30097488 0f84ed270f00 je Ordinal44+0x189c7b (30189c7b)
3009748e 48 dec eax
3009748f 754d jnz Ordinal44+0x974de (300974de)
30097491 a140815430 mov eax,[30548140]
ds:30548140=01e0d740
30097496 8b80d4010000 mov eax,[eax+0x1d4]
ds:000001d4=????????
3009749c 8d480c lea ecx,[eax+0xc]
ds:012cea06=????????
FAULT ->3009749f 0fb74002 movzx eax,word ptr [eax+0x2]
ds:012cea07=????
300974a3 8d0440 lea eax,[eax+eax*2]
ds:00000000=????????
300974a6 c1e004 shl eax,0x4
300974a9 03c1 add eax,ecx
300974ab 3bc8 cmp ecx,eax
300974ad 732f jnb Ordinal44+0x974de (300974de)
300974af 66817928ffff cmp word ptr [ecx+0x28],0xffff
ds:012cea13=????
300974b5 7405 jz Ordinal44+0x974bc (300974bc)
300974b7 83c130 add ecx,0x30
300974ba ebef jmp Ordinal44+0x974ab (300974ab)
300974bc 8b4508 mov eax,[ebp+0x8]
ss:013f7ae6=????????
300974bf 668b5002 mov dx,[eax+0x2]
ds:012cea07=????