SHT1x library working with arduino v1.0 but not with v1.6.5

Hi,
I am trying to integrate SHT-75 (Temp and RH) sensor with Arduino Uno on windows 8 platform.
I am using this library: GitHub - practicalarduino/SHT1x: Arduino library to support SHT1x-series (SHT10, SHT11, SHT15) temperature / humidity sensors from Sensirion
This works perfectly fine with Arduino v1.0 but when i try to use Arduino v1.6.5, the readings comes out weird. Example of the faulty readings is as follows:

Temperature: 22.2899971008C / -433.2279968261F. Humidity: -1775.94%
Temperature: -258.4599914550C / -433.2279968261F. Humidity: -1775.90%
Temperature: -258.4599914550C / -433.2279968261F. Humidity: -1775.94%
Temperature: 23.3599967956C / -433.2279968261F. Humidity: -1775.94%
Temperature: -258.4599914550C / -433.2279968261F. Humidity: -1775.94%
Temperature: -258.4599914550C / -433.2279968261F. Humidity: -1775.94%
Temperature: -258.4599914550C / -433.2279968261F. Humidity: -2265.65%

Is this a known issue? Could you please guide me on how to resolve this issue.
Your help is much appreciated!
Thanks!!

any suggestions on an alternative library source for integrating sht7x sensors?