I have a problem loading my saved games. The game worked Ok for hours, coming up with a Bioshock 2 has stopped working error around 3 times, however, the latest one will now not allow me to load any saved games, even older ones. The details of the error are shown below

Log Name: Application
Source: Application Error
Date: 10/02/2010 17:36:44
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: BeckettsDesktop
Description:
Faulting application BioShock2.exe, version 1.0.0.1, time stamp 0x4b2adbf8, faulting module BioShock2.exe, version 1.0.0.1, time stamp 0x4b2adbf8, exception code 0xc0000005, fault offset 0x003e9d5f, process id 0x22dc, application start time 0x01caaa778e7e3c82.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2010-02-10T17:36:44.000Z" />
<EventRecordID>10731</EventRecordID>
<Channel>Application</Channel>
<Computer>BeckettsDesktop</Computer>
<Security />
</System>
<EventData>
<Data>BioShock2.exe</Data>
<Data>1.0.0.1</Data>
<Data>4b2adbf8</Data>
<Data>BioShock2.exe</Data>
<Data>1.0.0.1</Data>
<Data>4b2adbf8</Data>
<Data>c0000005</Data>
<Data>003e9d5f</Data>
<Data>22dc</Data>
<Data>01caaa778e7e3c82</Data>
</EventData>
</Event>

This has happened multiple times now and I am unsure of how to fix it.

Thanks for your help,

Michael