It seems the honeymoon for owners of the new iPad is coming to an end, with users reporting more problems to Apple forums by the day. The latest: incompatible smart covers

If you have tried to use some 2011 model smart covers on your new iPad, you have probably noticed that the on/off sensor doesn't work.

The problem is apparently due to polarity. The iPad 2′s sleep/wake sensor wasn't polarity-specific, photographer Mark Booth told Mashable. And that apparently led to an issue for iPad 2 users who flipped their smart covers around so that they sat flush with the back of the tablet -- an everyday act that could cause the iPad 2 to switch off unintentionally.

iPad owners have warned people in Apple forums to buy smart covers only from Apple as other outlets are stocked with older versions of the covers that generally don't work with the new iPad.

Some users have found that the iPads they purchased in 2011 do work with the new iPad, however, which suggests Apple made the polarity change sometime last year, with newer covers supporting the latest model of the tablet.

If you have purchased an older version of the smart cover, it is likely Apple will exchange it for a newer version, according to one user on the Mac Forum.

The new iPad was released on Friday. Features include:

Processor: A5X quad-core processor touted as twice as fast and four times better performance than Tegra 3 chip.

Camera: 5-megapixel backside illuminated sensor on the back, 5-element lens, IR filter, and ISP built into the A5X chip.

Video: 1080p video recording.

Voice Dictation: Supports American, British and Australian English, French, German and Japanese.

4G LTE: New iPad now has 21Mbps HSPA+ and DC-HSDPA at 42Mbps, with LTE taking the cake at 73Mbps. Verizon, Rogers, Bell, Telus and AT&T will be the LTE partners.

Battery Life: 10 hours of battery life still! Nine hours on 4G

Size: 9.4mm thin, weighing 1.4lbs.

Price: $499 for 16GB! 32GB is $599 and 64GB for $699.

Release Date: In stores March 16.

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