System Specs listed below.... I have an end user that opens 2 calendars at one time. Over time Outlook begins acting erratic in that when you move the cursor in Outlook, data starts to disappear, it might add a line, etc. Most annoying is the fact that calendar data seems to disappear and then as you move the cursor, shows back up. This is the second computer she's used and they both do the same thing. Could this be a display setting, video card freaking out, etc.? OS Name Microsoft Windows XP Professional Version 5.1.2600 Service Pack 3 Build 2600 OS Manufacturer Microsoft Corporation System Name removed System Manufacturer Hewlett-Packard System Model HP EliteBook 8460p System Type X86-based PC Processor x86 Family 6 Model 42 Stepping 7 GenuineIntel ~2494 Mhz BIOS Version/Date Hewlett-Packard 68SCF Ver. F.04, 5/10/2011 SMBIOS Version 2.6 Windows Directory C:\WINDOWS System Directory C:\WINDOWS\system32 Boot Device \Device\HarddiskVolume1 Locale United States Hardware Abstraction Layer Version = "5.1.2600.5512 (xpsp.080413-2111)" User Name removed Time Zone Central Standard Time Total Physical Memory 4,096.00 MB Available Physical Memory 1.67 GB Total Virtual Memory 2.00 GB Available Virtual Memory 1.96 GB Page File Space 4.78 GB Page File C:\pagefile.sys

Hi, Please try below: 1 Rebuild an Outlook profile and test again. 2 If the user uses OWA how is it going? 3 Verify that whether those disappear items are backed up in local PST file. 4 What's your outlook client version and if possible please change to another one and try again. Thanks.Rowen TechNet Community Support

Hi, Please try below: 1 Rebuild an Outlook profile and test again. 2 If the user uses OWA how is it going? 3 Verify that whether those disappear items are backed up in local PST file. 4 What's your outlook client version and if possible please change to another one and try again. Thanks.Rowen TechNet Community Support