By Michael Oleaga (staff@latinospost.com) | First Posted: Aug 23, 2012 10:49 AM EDT

Apple's iPhone 5 is not the only device that's highly anticipated, but for laptop lovers it's the 13-inch MacBook Pro Retina but complaints from the 15-inch may jeopardize its popularity.

According to World News Resource, complaints for the latest Mac operating system (OS) X Mountain Lion on the 15-inch MacBook Pro Retina circulated due to battery life issues. A new update for the OS X Mountain Lion is expected to solve those issues as the Retina display is being blamed for draining the battery, although some do point fingers at the new OS instead.

The Mountain Lion update is expected to be released in September.

As Latinos Post reported earlier this week, further complaints regarding the 15-inch MacBook Pro Retina has surfaced due to "Fuzzy" displays when using Microsoft Office. User complaints flooded Apple forums due to some of the Office programs not appearing compatible with the Retina display. Users have used words such as "blurry," "very fuzzy," and even "crap" to describe the situation. According to MacRumors, the MacBook Pro Retina can last four hours without charging, but the new update can increase battery life for an additional four hours.

Currently, the only Office program suitable with Retina is Outlook 2011, while Excel, PowerPoint, and Word not working well.

According to Tech Radar, Microsoft is already gearing up for the Office 2013 edition, but no word yet if the programs will be Retina-suitable.

Rumors on the 13-inch Retina MacBook Pro suggests that there will be less space for battery packs, which make it almost inevitable that a Mountain Lion update will be needed to the 13-inch version. It is unknown if the update for the 15-inch Retina MacBook will be added on the 13-inch before its launch, but reports indicate it will likely come separate.

According to the Geekbench, the 13-inch Retina MacBook Pro will have the same 2.9 GHz Intel i7-3250M processor as previously seen in the original Geekbench reports back in June. It will also come with an 8GB RAM and an updated version of OS X Mountain Lion with version number 10.8.1, but it's unclear if this update assists with the battery life like the 15-inch version.

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