Help Me ATAPI issues

Log Name: System
Source: atapi
Date: 10/22/2010 3:54:38 PM
Event ID: 11
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: RonaldPMexico
Description:
The driver detected a controller error on \Device\Ide\IdePort0.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="atapi" />
<EventID Qualifiers="49156">11</EventID>
<Level>2</Level>
<Task>0</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2010-10-22T19:54:38.813Z" />
<EventRecordID>85374</EventRecordID>
<Channel>System</Channel>
<Computer>RonaldPMexico</Computer>
<Security />
</System>
<EventData>
<Data>\Device\Ide\IdePort0</Data>
<Binary>0000100001000000000000000B0004C002000000850100C00000000000000000000000000000000000000000000000000000000004100000</Binary>
</EventData>
</Event>

this happens constantly for last 24 hours - ia have tons of these msgs