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What mobile OS is the HP-2200 &nbsp;using?
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But I have been using 4.5 for a while now with out a problem????
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But I have been using 4.5 for a while now with out a problem????

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There are lots of problems with 4.5. You can always go back.
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There are lots of problems with 4.5. You can always go back.

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I'm using windows active sync 4.5 on my WIndows XP Pro Sp2 computer. I'm trying to sync my HP-2200 series pocket pc with my Outlook 2003 SP3 contacts and calendar. Here is the problem it used to work fine. When I drop my hand held into the cradel. It shows that &nbsp;it is syncing my calendar and detects 120 items in my calendar to sycn. Yet when I check my calendar on my hand held it is blank. The same it true for my conatacts. I'm using McAfee Virus Scan Enterprise 8.5i and non of my settings have changed. Any thoughts? &nbsp;Also &nbsp;I have done a factory rest on my hand held and it didn't fix the problem.
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I'm using windows active sync 4.5 on my WIndows XP Pro Sp2 computer. I'm trying to sync my HP-2200 series pocket pc with my Outlook 2003 SP3 contacts and calendar. Here is the problem it used to work fine. When I drop my hand held into the cradel. It shows that  it is syncing my calendar and detects 120 items in my calendar to sycn. Yet when I check my calendar on my hand held it is blank. The same it true for my conatacts. I'm using McAfee Virus Scan Enterprise 8.5i and non of my settings have changed. Any thoughts?  Also  I have done a factory rest on my hand held and it didn't fix the problem.

Windows Active Sync 4.5 not Working

Smartphones run using a variety of operating systems -- Android, iOS and Windows Mobile most commonly -- and an even wider variety of programming languages, including Objective-C, Java, Visual C#, C++ and .NET, not to mention HTML5 and JavaScript, and cross-platform frameworks such as PhoneGap.

Smartphone Programming

A smartphone or smart phone is a mobile phone with an advanced mobile operating system that combines features of a personal computer operating system with other features useful for mobile or handheld use. They typically combine the features of a cell phone with those of other popular mobile devices, such as personal digital assistant (PDA), media player and GPS navigation unit. Most smartphones can access the Internet, have a touchscreen user interface, can run third-party apps, music players and are camera phones. Most Smartphones produced from 2012 onwards also have high-speed mobile broadband 4G LTE internet, motion sensors, and mobile payment mechanisms.